An apparatus (1) and a related method for automatic transfer of socks (4) from a linking machine (2) to a sock-modeling piece for boarding operation (36) according to a predetermined orientation, the apparatus comprising reversing means (20) comprising feeding means (21) for picking up the sock (4) from a sewing station (22) of the linking machine and loading means (31) for automatically loading the sock (4) onto the sock-modeling piece, the reversing means (20) comprising a supporting element (23) and at least one pair of lower rollers (24) disposed around said supporting element (23).